NixOS/nixpkgs — pull request #1482 by wkennington (2014-01-10 05:14:41+00:00)
Title: nix-prefetch-git: Convert relative submodule URLS to absolute URLS

nix-prefetch-git does not convert relative submodule urls into absolute
urls based on the parent's origin. This patch adds support for
repositories which are using the relative url syntax.